The Dangling model in the construction of compound sentences with regard to verb tenses

A sentence is the most complete syntactic unit of a language. The construction of a sentence is the most comprehensive, controversial and fascinating syntactic issue in the language grammar. The message or intention is usually conveyed through a sentence. In fact, the communicative function of a language is carried out via a sentence. A sentence can be classified in to different categories from different perspectives: semantically, constructively or performatively either with a verb or without a verb and also with regard to the construction. With regard to the construction, a sentence is either simple or compound. A simple sentence is the one with a complete meaning which only has one verb. It must be born in mind that a sentence is a complete unit whit meaning and there can be a hesitation after that. There for units of speech that have a verb without a complete meaning and there can be no silence or hesitation after them cannot be regarded as a sentence. Since they are dependent upon another sentence to be completed. They are called phrases. Such phrases can be incorporated in compound sentences make main and subordinate clauses. Compound sentences are widely discussed whit in grammatical constructions, but their types and that how have been built their various constructions are less adequately discussed. With regard to the manner of construction of compound sentences, the widest linguistic amenities can be observed in the sentences. There is not such complexity or disagreement over simple sentences but compound sentences have been less adequately investigated and there is room for more discussion and debate. Because, in some grammars, without considering the construction criteria, all sentences that are connected to one another, whit connectives are called compound sentences. This paper has precisely investigated compound sentences and has elaborated on the construction criteria of compound sentences. The study has also pointed to the mistakes of some of the grammars. This research project has for the first time introduced constructive models of compound sentences in a comprehensive research taking in to account the tense of the verbs. The primary question in this research project is which kind of sentences can be considered as compound and what is the constructive of such a sentence? When defining a compound sentences, grammarians either shave the same beliefs or differ in their ideas. But all grammarians agree to the fact that a compound sentences has